Ink box

Abstract

The utility model provides an ink box capable of being injected with ink by an ink injection assembly, the ink box comprises a surface cover, a shell, an ink injection hole and an ink cavity formed between the surface cover and the shell, the ink cavity is used for storing ink, and the ink injection hole is used for allowing at least part of the ink injection assembly to pass through and injecting the ink into the ink cavity; the ink injection assembly comprises an ink injection needle and a protection piece, ink is injected into the ink cavity through the ink injection needle, the protection piece is connected to the outer wall of the ink injection needle in a sleeving mode, the protection piece comprises a contact end provided with a matched part, and the contact end is used for being combined with the ink injection hole; the ink box is provided with a matching part interacting with the matched part around the ink injection hole, the matching part is arranged to be a step formed around the ink injection hole, after the contact end is combined with the ink injection hole, one part of the contact end enters the ink cavity, the matched part and the matching part extrude each other, the matched part deforms, and the ink injection hole is formed in the ink cavity. In the process of taking out the ink injection assembly from the ink box, the ink injection needle moves relative to the protection piece, and the matched part extrudes the ink injection needle.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet imaging, in particular to an ink cartridge used for inkjet imaging equipment. Background Art

[0002] An ink cartridge is a consumable material for an inkjet imaging device. The ink cartridge includes a face cover and a shell body combined with each other, and an ink cavity formed between the face cover and the shell body. The ink cavity is used to contain the ink required for imaging by the imaging device. The ink cartridge also includes an air guide component, which is used to connect the ink cavity with the atmosphere. The air guide component includes an air inlet, a connecting hole (ink injection hole), and a connecting channel formed between the air inlet and the connecting hole. The air inlet and the connecting hole (ink injection hole) are connected through the connecting channel, and the atmosphere reaches the ink cavity via the air inlet, the connecting channel, and the connecting hole.

[0003] The ink injection assembly can inject ink into the ink cavity through the ink injection hole. The ink injection assembly includes an ink injection needle and a protective member. The ink injection needle can enter the ink cavity so that the ink reaches the ink cavity through the ink injection needle. The protective member is sleeved on the outer wall of the ink injection needle to protect the ink injection needle and prevent the ink injection needle from being damaged.

[0004] When the ink filling assembly is filling ink, a part of the ink filling assembly needs to extend into the ink cavity. When the ink filling is completed, the ink liquid level will be close to the ink filling hole. Therefore, there will be ink on the outer wall of the part of the ink filling assembly extending into the ink cavity. Furthermore, when the ink filling assembly is taken out, the ink on the ink filling assembly may drip near the ink filling hole. The dripping ink will form ink marks, which will affect the aesthetics of the ink cartridge. At the same time, it may be easily mistaken by users as ink leakage, thereby affecting product sales. Utility Model Content

[0005] The ink cartridge provided by the utility model can solve at least one of the above technical problems. The specific solution is as follows:

[0006] The ink cartridge is used to be filled with ink by an ink filling component. The ink cartridge includes a face cover, a shell, an ink filling hole, and an ink cavity formed between the face cover and the shell. The ink cavity is used to store ink, and the ink filling hole is used to allow the ink filling component to at least partially pass through and fill the ink cavity with ink.

[0007] The ink filling assembly includes an ink filling needle and a protective member. Ink is injected into the ink cavity through the ink filling needle. The protective member is sleeved on the outer wall of the ink filling needle to protect the ink filling needle. The protective member includes a contact end provided with a mating portion, and the contact end is used to combine with the ink filling hole.

[0008] The ink cartridge is provided with a mating portion interacting with the mated portion around the ink injection hole, and the mating portion is arranged to be a step formed around the ink injection hole. After the contact end is combined with the ink injection hole, a part of the contact end enters the ink cavity, and the mating portion and the mating portion are squeezed against each other, causing the mated portion to deform. In the process of removing the ink injection assembly from the ink cartridge, the mating portion squeezes the ink injection needle.

[0009] After the ink filling is completed, during the process of removing the ink filling assembly from the ink cartridge, the ink filling needle moves relative to the protective member.

[0010] The ink injection hole is arranged on the cover or the shell; the inner wall of the ink injection hole is arranged to be a curved surface.

[0011] The protective member is configured as a flexible member, a portion of the contact end is an entry portion, and the entry portion enters the ink cavity by being squeezed by the inner wall of the ink injection hole.

[0012] The size of the mated part is greater than or equal to the size of the ink injection hole, the size of the entry part close to one end of the mated part is greater than or equal to the size of the ink injection hole, and the size of the entry part away from one end of the mated part is greater than or smaller than the size of the ink injection hole.

[0013] The ink cartridge is also provided with an extrusion piece for extruding a portion of the contact end, and the extrusion piece is configured as a protrusion extending from the surface cover or the shell toward the ink chamber.

[0014] The size of the extrusion piece is larger than the size of the ink injection hole, and at the same time, the size of the extrusion piece is equal to or smaller than the size of a part of the contact end; the extrusion piece is configured as an annular protrusion.

[0015] Compared with the prior art, a mating portion is provided around the ink filling hole of the ink cartridge provided in the utility model. At the same time, a mated portion is also provided on the contact end of the protective member. The mated portion and the mating portion are squeezed against each other, and the mated portion is deformed. After the ink filling is completed, when the ink filling assembly is taken out, the ink filling needle will move relative to the mated portion, and the ink filling needle will be squeezed by the mated portion, so that the ink stained on the ink filling needle will be scraped off, reducing the possibility of ink dripping from the ink filling needle to other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the ink cartridge involved in the utility model after the second sealing component is hidden and then combined with the ink injection component.

[0017] Figure 2 and Figure 3 It is an exploded view of some components of the ink cartridge involved in the utility model.

[0018] Figure 4 The ink cartridge of the utility model is provided with a second sealing member hidden and combined with an ink injection assembly. Figure 1Cross-sectional view after cutting along the AA direction.

[0019] Figure 5 The utility model is an exploded view of the ink injection assembly. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0021] The ink cartridge 100 can be removably installed in an inkjet imaging device provided with an ink absorber needle. For ease of understanding and description, hereinafter, when the ink cartridge 100 is placed in an installed posture, the gravity direction of the ink cartridge 100 is downward, the opposite direction is upward, the direction intersecting the up and down directions is the front-to-back direction, and the direction intersecting both the up and down directions and the front-to-back directions is the left-to-right direction.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the ink cartridge 100 includes a cartridge body 70, an ink outlet portion 30 and a handle 40. The cartridge body 70 is combined with the ink outlet portion 30, and the handle 40 is connected to the cartridge body 70. The handle 40 is convenient for a user to take and place the ink cartridge 100. The cartridge body 70 includes a cover 10, a shell 20 and an ink cavity 21 formed between the cover 10 and the shell 20. The cover 10 and the shell 20 are combined with each other in a detachable manner. The ink cavity 21 is used to store ink and can be set to be one or more interconnected. The shell 20 has a first side wall 22, a second side wall 23 and a third side wall 24, the second side wall 23 is located between the first side wall 22 and the third side wall 24, the first side wall 22 and the second side wall 23 are connected to each other, the second side wall 23 and the third side wall 24 are connected to each other, the first side wall 22 and the third side wall 24 are located on both sides of the ink chamber 21, the first side wall 22 is located in front of the ink chamber 21, the third side wall 24 is located behind the ink chamber 21, and the second side wall 23 is located below the ink chamber 21.

[0023] The ink cartridge 100 also includes a negative pressure maintaining member located in the shell 20, which is used to maintain negative pressure in the ink chamber 521 to ensure that when the ink chamber 21 is naturally connected to the atmosphere, ink is not easy to drip from the ink outlet 31. In some embodiments, the negative pressure maintaining member is configured as a sponge.

[0024] like Figure 3As shown, the ink cavity 21 is interconnected with the ink outlet portion 30, and the ink outlet portion 30 is arranged on one of the first side wall 22, the second side wall 23 and the third side wall 24. The ink outlet portion 30 is provided with an ink outlet port 31, and the ink outlet port 31 is used to allow the ink suction needle to enter the ink outlet portion 30, so that the ink can be supplied to the imaging device; the ink cartridge 100 also includes a first sealing member 32 detachably combined with the shell 20, and before the ink cartridge 100 is used, the first sealing member 32 is used to seal the ink outlet port 31; in some embodiments, the first sealing member 32 is combined with the shell 20 by snapping.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the ink cartridge also includes an air guide component 50, which is used to connect the ink chamber 21 with the atmosphere. An air inlet 51, an air guide cavity 52, an air guide port 53, an air guide channel 54 and a connecting hole (ink injection hole) 55 are provided in the air guide component 50. The air inlet 51 and the air guide cavity 52 are both provided in the shell 20. The air inlet 51 and the air guide cavity 52 are connected with each other. The atmosphere enters the air guide cavity 52 through the air inlet 51, and then reaches the ink chamber 21 from the air guide cavity 52 via the air guide port 53, the air guide channel 54 and the connecting hole (ink injection hole) 55. The air inlet 51 can be provided on any side wall of the shell 20.

[0026] In some more preferred embodiments, the air inlet 51 is disposed on one of the first side wall 22 , the second side wall 23 , and the third side wall 24 of the housing 20 .

[0027] In some embodiments, the air inlet 51 and the ink outlet 31 can be sealed together by the first seal 32. In this case, the air inlet 51 is arranged within the coverage range of the first seal 32 after the first seal 32 is combined with the shell 20. For example, the air inlet 51 is arranged near the ink outlet 31, or the air inlet 51 is connected to the ink outlet 31.

[0028] In some embodiments, when the air inlet 51 is not sealed by the first seal 32, the air inlet 51 also needs to be sealed by other components before the ink cartridge 100 is used. Before the ink cartridge 100 is installed, other components used to seal the air inlet 51 need to be removed so that the air inlet 51 is connected to the atmosphere.

[0029] In some embodiments, the air port 53, the air channel 54 and the connecting hole (ink injection hole) 55 are all arranged on the face cover 10, the air port 53 is connected with the air cavity 52, the air channel 54 is used to connect the air port 53 and the ink injection hole 55, the ink injection hole 55 is used to connect with the ink cavity 21, the air inlet 51, the air cavity 52, the air port 53, the air channel 54 and the ink injection hole 55 can form an atmospheric circulation channel, and the atmosphere can reach the ink cavity 21 via the atmospheric circulation channel.

[0030] The ink cartridge 100 further includes a second sealing member 56, which is used to seal the air guide port 53, the air guide channel 54 and the ink injection hole 55 together; in some embodiments, the second sealing member 56 is configured as a flexible film.

[0031] In some embodiments, the ink injection hole 55 is configured as a circular hole, and the inner wall of the ink injection hole 55 is configured as a curved surface, which facilitates the ink injection assembly 60 described below to enter the ink injection hole 55 .

[0032] The cover 10 further includes a mating portion 11 arranged around the ink injection hole 55 , and along the atmosphere circulation channel, the mating portion 11 is arranged to be a step formed between the air guide channel 54 and the ink chamber 21 .

[0033] In some embodiments, the ink injection hole 55 may also be disposed on the housing 20 , for example, on the first side wall 22 or the second side wall 23 .

[0034] like Figure 4 and Figure 5 As shown, the ink injection assembly 60 includes an ink injection needle 61 and a protective member 62 that are combined with each other. The ink injection hole 55 is used to allow the ink injection assembly 60 to at least partially pass through and inject ink into the ink cavity 21. Specifically, ink can be injected into the ink cavity 21 through the ink injection needle 61. The protective member 62 is sleeved on the outer wall of the ink injection needle 61 to protect the ink injection needle 61, prevent the ink injection needle 61 from being damaged, and prevent the ink injection needle 61 from stabbing people; the protective member 62 is set as a flexible member, and the protective member 62 is combined with the ink injection hole 55. One end is called the contact end 621, and the contact end 621 is provided with a mated portion 622 and an entry portion 623. The mated portion 622 is used to interact with the mating portion 11. After the mated portion 622 interacts with the mating portion 11, the mated portion 622 is deformed, and the mated portion 622 can form a recessed portion toward the center of the contact end. The size of the entry portion 623 is larger than the size of the ink injection hole 55. When injecting ink, the entry portion 623 needs to pass through the ink injection hole 55 to enter the ink cavity 21.

[0035] In some embodiments, the size of the entry portion 623 away from the mated portion 622 is slightly smaller than the size of the ink injection hole 55 , and the size of the entry portion 623 close to the mated portion 622 is equal to or larger than the size of the ink injection hole 55 .

[0036] During the assembly process of the ink cartridge 100, first, the negative pressure maintaining member is placed in the ink cavity 21, and then the shell 20 and the cover 10 are fixed together, and the ink outlet 31 is sealed with the first sealing member 32; then, the ink filling assembly 60 is inserted into the ink filling hole 55, and the ink filling needle 61 performs negative pressure treatment on the ink cavity 21; secondly, ink is injected into the ink cavity 21, and finally, after the ink filling is completed, the second sealing member 56 is used to seal the air guide port 53, the air guide channel 54 and the ink filling hole 55 together.

[0037] The ink injection needle 61 and the protective part 62 are combined and then enter the ink injection hole 55 together. Specifically, after the entering part 623 is squeezed and deformed by the inner wall of the ink injection hole 55, it can pass through the ink injection hole 55 and reach the ink cavity 21, so that the ink can reach the ink cavity 21 through the ink injection needle 61. At the same time, the mating part 622 will also be squeezed against the mating part 11, and the mating part 622 will be deformed.

[0038] When the ink filling is completed, when the ink filling assembly 60 is taken out from the ink cartridge 100 / ink filling hole 55, the ink filling needle 61 will move relative to the protective part 62 / the mating part 622. Since the mating part 622 and the mating part 11 are squeezed against each other, when the ink filling needle 61 passes through the mating part 622, the ink filling needle 62 will also be squeezed by the mating part 622, so that the ink stained on the ink filling needle 61 will be scraped off, reducing the possibility of ink dripping from the ink filling needle 62 to other parts.

[0039] In some embodiments, an extrusion piece may be further provided on the side of the face cover 10 or the shell 20 on which the ink injection hole 55 is provided, which faces the ink chamber 21. The extrusion piece is used to extrude the entry portion 623. The extrusion piece is provided as a protrusion extending from the face cover 10 or the shell 20 toward the ink chamber 21. The size of the extrusion piece is slightly larger than the size of the ink injection hole 55. At the same time, the size of the extrusion piece is equal to or slightly smaller than the size of the entry portion 623. Through such a setting, when the ink injection needle 61 is taken out, the entry portion 623 not only abuts against the ink injection hole 55, but also abuts against the extrusion piece, thereby increasing the area of ​​the entry portion 623 being squeezed, reducing the ink contaminated on the ink injection needle 61, and further reducing the possibility of ink dripping from the ink injection needle 61.

[0040] In some embodiments, the extrusion piece is configured as an annular protrusion, which can further increase the extruded area of ​​the entry portion 623 .

[0041] [Beneficial Effects]

[0042] Compared with the prior art, a mating portion 11 is provided around the ink injection hole 55 of the ink cartridge 100 in the utility model. At the same time, a mated portion 622 is also provided on the contact end 621 of the protective member 62. The mated portion 622 and the mating portion 11 squeeze each other, and the mated portion 622 is deformed. After the ink injection is completed, when the ink injection assembly 60 is taken out, the ink injection needle 61 will move relative to the mated portion 622, and the ink injection needle 62 will be squeezed by the mated portion 622, so that the ink stained on the ink injection needle 61 will be scraped off, reducing the possibility of ink dripping from the ink injection needle 62 to other components. Through such a setting, after the ink injection assembly 60 is taken out, there will be no dripping ink on the ink cartridge 100, and no ink marks will be formed after the second sealing member 56 seals the air guide port 53, the air guide channel 54 and the ink injection hole 55, and the appearance of the ink cartridge 100 can be kept neat.

Claims

1. An ink cartridge, used to be filled with ink by an ink filling assembly, the ink cartridge comprising a cover, a shell, an ink filling hole, and an ink cavity formed between the cover and the shell, the ink cavity being used to store ink, and the ink filling hole being used to allow the ink filling assembly to at least partially pass through and fill the ink cavity with ink; The ink injection assembly includes an ink injection needle and a protective member, ink is injected into the ink cavity through the ink injection needle, the protective member is sleeved on the outer wall of the ink injection needle, and is used to protect the ink injection needle, the protective member includes a contact end provided with a mating portion, and the contact end is used to be combined with the ink injection hole; It is characterized in that The ink cartridge is provided with a mating portion around the ink injection hole that interacts with the mated portion, and the mating portion is arranged to be a step formed around the ink injection hole. After the contact end is combined with the ink injection hole, a part of the contact end enters the ink cavity, and the mating portion and the mating portion are squeezed against each other, causing the mated portion to deform.

2. The ink cartridge according to claim 1, characterized in that: During the process of removing the ink filling assembly from the ink cartridge, the ink filling needle is squeezed by the matching part.

3. The ink cartridge according to claim 2, characterized in that: After the ink filling is completed, during the process of removing the ink filling assembly from the ink cartridge, the ink filling needle moves relative to the protective member.

4. The ink cartridge according to claim 1, characterized in that: The ink injection hole is arranged on the face cover or the housing.

5. The ink cartridge according to claim 4, characterized in that: The inner wall of the ink injection hole is configured as a curved surface.

6. The ink cartridge according to claim 1, characterized in that: The protective member is configured as a flexible member, a portion of the contact end is an entry portion, and the entry portion enters the ink cavity by being squeezed by the inner wall of the ink injection hole.

7. The ink cartridge according to claim 6, characterized in that: The size of the mated part is greater than or equal to the size of the ink injection hole, the size of the entry part close to one end of the mated part is greater than or equal to the size of the ink injection hole, and the size of the entry part away from one end of the mated part is greater than or smaller than the size of the ink injection hole.

8. The ink cartridge according to any one of claims 1 to 7, characterized in that: The ink cartridge is also provided with an extrusion piece for extruding a portion of the contact end, and the extrusion piece is configured as a protrusion extending from the surface cover or the shell toward the ink chamber.

9. The ink cartridge according to claim 8, characterized in that: The size of the extrusion member is larger than the size of the ink injection hole, and at the same time, the size of the extrusion member is equal to or smaller than the size of a portion of the contact end.

10. The ink cartridge according to claim 8, characterized in that: The extrusion piece is configured as an annular protrusion.

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